Types of Diabetes

Diabetes is a chronic disease that occurs when the pancreas can no longer make insulin.

Types of Diabetes
Table of Contents

What is Diabetes?

  • Diabetes is a chronic disease that occurs when the pancreas can no longer make insulin, or the body cannot make good use of the insulin it produces.
  • Insulin is a hormone that regulates blood glucose.
  • Not being able to produce or use insulin effectively leads to raised glucose levels in the blood, known as hyperglycaemia.
  • Over the long-term high glucose levels are associated with damage to the body and failure of various organs and tissues.
  • Diabetes is a major cause of blindness, kidney failure, heart attacks, stroke, and lower limb amputation.

Types of Diabetes:

  • Type 1 diabetes:
    • It is a condition in which your immune system destroys insulin-making cells in your pancreas. These are called beta cells.
    • When you have type 1 diabetes, your body produces very little or no insulin.
    • It requires daily administration of insulin to maintain blood glucose levels under control.
    • It is usually diagnosed in children and young people, so it used to be called juvenile diabetes.
    • Symptoms include excessive excretion of urine (polyuria), thirst (polydipsia), constant hunger, weight loss, vision changes, and fatigue.
  • Type 2 diabetes:
    • It results from the body’s ineffective use of insulin that it produces.
    • More than 95% of people with diabetes have type 2 diabetes
    • This type of diabetes is largely the result of excess body weight and physical inactivity.
    • Symptoms may be similar to those of type 1 diabetes but are often less marked. As a result, the disease may be diagnosed several years after onset.
  • Gestational diabetes (GDM):
    • It is a type of diabetes that consists of high blood glucose during pregnancy and is associated with complications for both mother and child. 
    • GDM usually disappears after pregnancy, but women affected, and their children are at increased risk of developing type 2 diabetes later in life.

 


Q1) What is Glucose?

Glucose is the main type of sugar in the blood and is the major source of energy for the body’s cells. Glucose comes from the foods we eat or the body can make it from other substances. Glucose is carried to the cells through the bloodstream. Several hormones, including insulin, control glucose levels in the blood.

Source: Study discovers insulin deficiency associated with Type 1 diabetes leads to smaller pancreas

Update Icon
Latest UPSC Exam 2026 Updates

Date IconLast updated on August, 2026

UPSC Mains 2026 will be conducted on 21st, 22nd, 23rd, 29th and 30th August 2026.

→ Check out the latest UPSC Syllabus 2026 here.

UPSC Mains Admit Card 2026 is now out.

→ Enroll in Vajiram & Ravi’s UPSC Mains Test Series 2027 for structured answer writing practice, expert evaluation, and exam-oriented feedback.

→ Join Vajiram & Ravi’s UPSC Mentorship Program 2027 for personalized guidance, strategy planning, and one-to-one support from experienced mentors.

→ Go through the UPSC Mains Previous Year Papers to enhance your preparation.

→ Download UPSC Mains Essay Paper 2025, UPSC Mains GS Paper-I 2025, UPSC Mains GS Paper-II 2025, UPSC Mains GS Paper-III 2025, UPSC Mains GS Paper-IV 2025, UPSC Mains English (Compulsory) Paper 2025, UPSC Mains Hindi (Qualifying) Paper 2025 here.

→ UPSC has released UPSC Toppers List 2025 with the Civil Services final result on its official website.

UPSC Calendar 2027 has been released.

→ Also check Best UPSC Coaching in India

UPSC GS Course 2026
UPSC GS Course 2026
₹1,80,000
Enroll Now
GS Foundation Course 2 Yrs
GS Foundation Course 2 Yrs
₹2,45,000
Enroll Now
UPSC Mentorship Program
UPSC Mentorship Program
₹85000
Enroll Now
UPSC Sureshot Mains Test Series
UPSC Sureshot Mains Test Series
₹27000
Enroll Now
Prelims Powerup Test Series
Prelims Powerup Test Series
₹14000
Enroll Now
Enquire Now